This happens with all my PC's. Sometimes the screen freezes when using touchscreen. If I then touch outside Firefox...... on the toolbar for instance. Firefox will "unfreeze" and all is good. Any suggestions?
When I use a touchscreen PC with my finger the newest ESR will not simply scroll. It wants to only move a stored bookmark up or down. I went back to previous version until it gets fixed. With another computer and a mouse, then all works just fine.